Thieds to chaeles s



(No Model.)

RAY. HOISTIN G APPARATUS.

No. 374,085. Patented Nov. 29, 1887.

INVENTOR @MMM K WITNESSES:

' 'UNITED STATES PATENT Fries.

ALEXANDER BAY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF TWO THIRDS TOCHARLES S. LOWRY A'ND SAMUEL BALL VAN DUSEN, BOTH or SAME PLACE.

HOISTING- APPARATUS.

SPECIFICATION forming part of Letters Patent No. 374,085, dated November29, 1887.

Application filed June 4, 1887. Serial No. 240,226. (No model.)*

companying drawings, which formpart thereof.

My invention has particular reference to a class of elevating devicesespecially designed for lifting coal and other substances from ves-'sels, then conveying them to asuitable position over the wharf, andautomatically discharging the same, but it is in nowise limited to thisparticular use.

Heretofore it has been customary to elevate the bucket containing thecoalby one device,

then turn the derrick or crane by another device, and finally dischargethe contents of the bucket by hand-manipulation.

The object of my invention is to overcome the defect in such aconstruction by arranging the mechanism so as to perform its functionsautomatically, thereby increasing the speed of manipulation and greatlyreducing the labor required to do the given amount of work;

In carrying out my invention I provide a derrick or crane pivoted on avertical axis and having a weighted guy-rope adapted to return thederrick or crane to its normal position. This derrick or crane supportsa lifting-rope 3 5 which is connected to a bail having pivoted thereto abucket, and provided with a locking device for holding the bail andbucket rigidly together until fully raised, at which time the lock isoperated by a stop secured to the upper 0 part of the derrick or craneand the bucket, be-

ing freed, tilts over by gravity and automatic] ally discharges itscontents. In addition to these features, I provide a suitable derrickor.

crane operating rope or cable,which maybe op erated to cause the derrickor crane to revolve on its vertical axis while the bucket is beingraised, and preferably this cableis wound upon a drum so proportionedinrelation to and combined with a lifting-drum that as the bucketlocking-pin, d.

is being raised, the derrick or crane is automatically swung around,andwhen the bucket is in position to be discharged the derrick or cranewill be fully swung around over the wharf or receptacle to receive thecontents.

In the drawings, Figure 1 is a side elevation 5 5 of a derrick or craneand apparatus embodying my invention. Fig. 2 is a plan View of same.Fig. 3 is a front elevation of the elevatingbucket and its connectionsremoved, and Fig.

4 is a diagram illustrating the elevation of a (o modified arrangementof rope for operating the derrick or crane.

A is the derrick or crane, and has a vertical axis at B,whereby it isadapted to swing around horizontally. When not otherwise actuated, 6 itisreturned to its normal position over the boat, car, or placecontaining the material to be lifted by a guy-rope, J, which is guidedover pulleys jj and connected to a weight, K. The upper end of thederrick is provided with a sheave, 9, over which the lifting-cable Gr,terminating on its free end with a hook, passes. The other end of thecable is guided over pulleys g g and connected with an elevatingdrum, H.By winding the drum H the bucket D, connected to the rope G by its bailE, may be elevated or lowered. The bucket D is pivoted to the bail E ate and is provided with a To the bail is pivoted a lock,

d, which is connected to a pivoted arm or lever, F, at the top of thebail by a link-connection, f. From this it will be observed that whenthe'free end of the lever F is pressed down the lock is raised,liberating the bucket D, which by means of gravity revolves upon itsaxis 6, automatically discharging its contents. 7'

' Pivoted or loosely connected upon the upper end of the derrick A is amovable stop, I,

which is arranged in the path of the arm F of 0 the risingbucket,whereby when the bucket is fully raised the arm F strikes thestop I and lifts the lock d to allow the bucket to discharge. As theupward movement of the lifting-rope is not easily arrested on aninstant, the said stop -I is made movable upwardly,so that after thelock has been tripped any further movement of the cable G will lift thestop I up with it, and thereby overcome any tendency to breakage of thevarious parts and obviate the excessive wear which would otherwise bethe result.

To swing the derrick around upon its vertical axis in opposition to thetendency of the weight K, I provide a crane-operating rope, L,which isconnected at one end to a windingdrum, N, and, after passing over apulley or eye, Z, on the derrick,is connected at its other end to aweight,l\L By winding up onthe drum N the weight M will be drawn upuntil it reaches the sheave or eye Z, and then any further movement ofthe drum will cause the derrick to be swung around. The drums H and Nare preferably secured to the same shaft, 0, or positively con nectedtogether, so that when one revolves the other revolves also, and withfixed capacity for winding in their cables.

The operation of this device is now evident. If we commence to revolvethe drums H and N, the cable G will be drawn in, lifting thebucket,while at the same time the cable Lwill be drawn in, but will haveno effect until the weight or other suitable stop, M, reaches the sheaveor eye Z, and then the crane is swung around simultaneously with thefurther elevation of the bucket, and the parts are so proportioned thatthe bucket is fully raised just as the crane is swung around to theright position for the discharge to take place. By making the rope orcable L longer or shorter the derrick may be caused to swing around toany desired degree during the time of lifting the bucket. It will befurther observed that by this construction the bucket will be allowed torise clear of surface obstructions before being caused to swing aroundhorizontally.

It is evident that in place ofusing the weight M on the free end of therope L, the rope may be connected positively to the crane, as shown inFig. 4, and then pass over a take-up weight, M and then be connectedwith the drum N, in both of which cases the operation is substantiallythe same.

I do not limit myself to the details of con struction here set out, asit is evident that they might be modified in a large number of wayswithout in the least departing from thespirit of the invention.

In this application I do not claim the specific construction of thebucket and the means for tripping its look, as this forms thesubjectmatter of another application.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of a derrick or crane pivoted upon a vertical axis, asheave at the upper end of said derrick, an elevating rope or cablepassing over said sheave, a tilting bucket supported thereby having apivoted bail connecting with the said rope or cable, and a lock carriedby the bucket to prevent the bucket proper from tilting on the bail, alever connecting with the lock and pivoted on the bail, and a stationaryprojection in the path of the lever and at a fixed elevation, and arope, substantially as described, to move the derrick on its verticalpivot, whereby, after the bucket is raised and swung around in a newposition, it may be automatically discharged.

2. The combination of a derrick or crane pivoted on a vertical axis, asheave at its up per end, an elevating rope or cable passing over saidsheave, a bucket having a pivoted bail secured to said rope or cable byits bail, a lock carried by said bail to lock said bucket rigidlythereto, a stationary stop or projection secured to the upper part ofthe derrick by a loose connection as to upward movement, but fixed as todownward movement,to operate on said lock to free the bucket when fullyraised, a rope or cable for turning the derrick on its axis, andsuitable drums for winding up both ropes or cables.

3. The combination of a derrick or crane pivoted on a vertical axis, asheave at its upper end, an elevating rope or cable passing over saidsheave, a bucket having a pivoted bail secured to said rope or cable byits bail, a lock carried by said bail to lock said bucket rigidlythereto, a stationary stop or projection secured to the upper part ofthe derrick to up erate on said lock to free the bucket when fullyraised, a ropeor cable for turning the derrick on its axis, suitabledrums for winding up both ropes or cables, of diameters suflicient tofully raise the bucket and swing the derrick to its full movement in thesame time,whcreby as the bucket is fully raised it will be automaticallyturned to the proper position and then dumped.

4. The combination of a derrick or crane pivoted on a vertical axis, asheave at its hpper end, an elevating rope or cable passing over saidsheave, a bucket having a pivoted bail secured to said rope or cable byits bail, a lock carried by said bail to lock said bucket rigidlythereto, a stationary stop or projection secured to the upper part ofthe derrick to operate on said lock to free the bucket when fullyraised, a second sheave on the derrick, a rope or cable to swing thederrick passing over said sheave,and provided with a stop to prevent itspassing entirely over the sheave, a drum to wind up the bucket-rope, adrum to wind up the derrick-moving rope, and a shaft common to both ofsaid drums, whereby the bucket is raised in the same time that thederrick is swung around and with the same number of revolutions of theshaft, and the contents of said bucket are automatically discharged.

5. The combination of a derrick or crane pivoted on a vertical axis, asheave at its upper end, an elevating rope or cable passing over saidsheave, a bucket having a pivoted bail secured to said rope or cable byits bail, a lock carried by said bail to lock said bucket rigidlythereto, a stop or projection secured to the upper part of the derrickto operate on said lock to free the bucket when fully raised, a secondsheave on the derrick, a rope or cable to swing the derrick passing oversaid sheave, and provided with a stop to prevent its passing entirelyover the sheave, a drum to wind up the bucket-rope, a drum to wind upthe derrick-moving rope, a shaft common to both of said drums, wherebythe bucket is'raised in the same time that the derrick is swung aroundand with the same number of revolutions of the shaft, and a gravitydevice, substantially as set out, to automatically return the derrick toits original position upon lowering the bucket. v

6. The combination of the derrick or crane A, pivoted at B, the stop I,hinged to the derrick or crane near its top, the lifting-rope G, runningclose to the stop, the bucket D, carried by said rope and having apivoted look provided with an extension adapted to strike the stop totrip the lock, the derrick-operating rope L, and the drums H and N forsaid ropes G and L, substantially as and for the purpose specified.

7. The combination of the derrick or crane A, pivoted at B, thelifting-rope G, the derrick-rope L, drums HN for said ropes, a shaftcommon to said drums, the sheave or eye Z on the derrick, and a weightand stop, M, on the free end of the rope Lbeyond the sheave or eye.

8. The combination of the derrick or crane A, pivoted at B, thelifting-rope G, the derrick-operating rope L, drums H N for said ropes,a shaft common to said drums, the sheaves or eye Z on the derrick, aweight and stop, M, on the free end of the rope L beyond the sheave oreye,the rope J, its guide-pulleys, and Weight K,to return the derrick toits normal position.

In testimony of which invention I hereunto set my hand.

ALEXANDER RAY.

.Witnesses:

- R. M. HUNTER,

E. M. BRECKINREED.

